csu3_am335x/EVSE/GPL/php-8.1.12/tests/classes/iterators_001.phpt

--TEST--
ZE2 iterators and foreach
--FILE--
<?php
class c_iter implements Iterator {

    private $obj;
    private $num = 0;

    function __construct($obj) {
        echo __METHOD__ . "\n";
        $this->num = 0;
        $this->obj = $obj;
    }
    function rewind(): void {
    }
    function valid(): bool {
        $more = $this->num < $this->obj->max;
        echo __METHOD__ . ' = ' .($more ? 'true' : 'false') . "\n";
        return $more;
    }
    function current(): mixed {
        echo __METHOD__ . "\n";
        return $this->num;
    }
    function next(): void {
        echo __METHOD__ . "\n";
        $this->num++;
    }
    function key(): mixed {
        echo __METHOD__ . "\n";
        switch($this->num) {
            case 0: return "1st";
            case 1: return "2nd";
            case 2: return "3rd";
            default: return "???";
        }
    }
}

class c implements IteratorAggregate {

    public $max = 3;

    function getIterator(): Traversable {
        echo __METHOD__ . "\n";
        return new c_iter($this);
    }
}

echo "===Array===\n";

$a = array(0,1,2);
foreach($a as $v) {
    echo "array:$v\n";
}

echo "===Manual===\n";
$t = new c();
for ($iter = $t->getIterator(); $iter->valid(); $iter->next()) {
    echo $iter->current() . "\n";
}

echo "===foreach/std===\n";
foreach($t as $v) {
    echo "object:$v\n";
}

echo "===foreach/rec===\n";
foreach($t as $v) {
    foreach($t as $w) {
        echo "double:$v:$w\n";
    }
}

echo "===foreach/key===\n";
foreach($t as $i => $v) {
    echo "object:$i=>$v\n";
}

print "Done\n";
exit(0);
?>
--EXPECT--
===Array===
array:0
array:1
array:2
===Manual===
c::getIterator
c_iter::__construct
c_iter::valid = true
c_iter::current
0
c_iter::next
c_iter::valid = true
c_iter::current
1
c_iter::next
c_iter::valid = true
c_iter::current
2
c_iter::next
c_iter::valid = false
===foreach/std===
c::getIterator
c_iter::__construct
c_iter::valid = true
c_iter::current
object:0
c_iter::next
c_iter::valid = true
c_iter::current
object:1
c_iter::next
c_iter::valid = true
c_iter::current
object:2
c_iter::next
c_iter::valid = false
===foreach/rec===
c::getIterator
c_iter::__construct
c_iter::valid = true
c_iter::current
c::getIterator
c_iter::__construct
c_iter::valid = true
c_iter::current
double:0:0
c_iter::next
c_iter::valid = true
c_iter::current
double:0:1
c_iter::next
c_iter::valid = true
c_iter::current
double:0:2
c_iter::next
c_iter::valid = false
c_iter::next
c_iter::valid = true
c_iter::current
c::getIterator
c_iter::__construct
c_iter::valid = true
c_iter::current
double:1:0
c_iter::next
c_iter::valid = true
c_iter::current
double:1:1
c_iter::next
c_iter::valid = true
c_iter::current
double:1:2
c_iter::next
c_iter::valid = false
c_iter::next
c_iter::valid = true
c_iter::current
c::getIterator
c_iter::__construct
c_iter::valid = true
c_iter::current
double:2:0
c_iter::next
c_iter::valid = true
c_iter::current
double:2:1
c_iter::next
c_iter::valid = true
c_iter::current
double:2:2
c_iter::next
c_iter::valid = false
c_iter::next
c_iter::valid = false
===foreach/key===
c::getIterator
c_iter::__construct
c_iter::valid = true
c_iter::current
c_iter::key
object:1st=>0
c_iter::next
c_iter::valid = true
c_iter::current
c_iter::key
object:2nd=>1
c_iter::next
c_iter::valid = true
c_iter::current
c_iter::key
object:3rd=>2
c_iter::next
c_iter::valid = false
Done